2. n. [Well Completions]. A downhole tool that is used to impart a heavy blow or impact load to a downhole tool assembly. Commonly used in fishing operations to free stuck objects, jars are available in a range of sizes and capacities to deliver upward or downward impact loads.
Hypnosis is a mental state (state theory) or set of attitudes (nonstate theory) usually induced by a procedure known as a hypnotic induction, which is commonly composed of a series of preliminary instructions and suggestions. hypnotic procedure is used to encourage and evaluate responses to suggestions. When using hypnosis, one person (the subject) is guided by another (the hypnotist) to respond to suggestions for changes in subjective experience, alterations in perception, sensation, emotion, thought or behavior.
Hypnotherapy is an alternative curative healing method that is used to create subconscious change in a patient in the form of new responses, thoughts, attitudes, behaviours or feelings. It is undertaken with a subject in hypnosis.